Method and system for remotely monitoring intoxication

ABSTRACT

A method and system for remotely monitoring intoxication of a user, comprising: prompting the user to provide a breath sample at a time point; at a breath sample acquisition device, generating a breath sample signal upon reception of the breath sample from the user, and broadcasting a unique signature proximal in time to the time point; using a sensor of a mobile computing device, generating an authentication signal derived from detection of the unique signature; at a processing system in communication with the mobile computing device and the sample acquisition device, receiving the breath sample signal and the authentication signal; generating a verification assessment that validates provision of the breath sample by the user; determining a value of an intoxication metric for the user based upon the breath sample signal; and transforming the verification assessment and the value of the intoxication metric into an analysis of intoxication of the user.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of co-pending U.S. patent applicationSer. No. 14/602,919, filed 22 Jan. 2015, which claims the benefit ofU.S. Provisional Application Ser. No. 61/930,062, filed 22 Jan. 2014,which is incorporated in its entirety herein by this reference.

TECHNICAL FIELD

This invention relates generally to the intoxication monitoring devicefield, and more specifically to a new and useful method and system forremotely monitoring intoxication.

BACKGROUND

It is often desirable to analyze a biological sample from a person todetect substances carried in the biological sample. As such,breathalyzer devices are used to test the content of alcohol (i.e.,ethanol) carried in an individual's breath, in order to determine ameasure of alcohol consumed by the individual. The measure is typicallypresented as a blood alcohol content (BAC), which can provide anindication of a user's mental and/or physical adeptness resulting fromintoxication. As such, BAC measures are also used to provide a basis forlimits of alcohol consumption in relation to the performance of tasks,including driving a vehicle, operating machinery, and performing varioustasks in a working environment. While current blood alcohol measuringdevices are able to determine an individual's BAC, and are typicallyused in law enforcement settings, existing systems and methodsconfigured to provide remote monitoring of alcohol consumption, withmeasures to prevent fraudulent sample provision, are severely limited.

There is thus a need in the intoxication monitoring device field tocreate a new and useful method and system for remotely monitoringintoxication. This invention provides such a new and useful method andsystem.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 depicts a flow chart of an embodiment of a method for remotelymonitoring intoxication;

FIG. 2 depicts a schematic of an embodiment of a method for remotelymonitoring intoxication;

FIGS. 3A and 3B depict variations of a portion of a method for remotelymonitoring intoxication;

FIGS. 4A and 4B depict variations of unique signatures in an embodimentof a method for remotely monitoring intoxication;

FIG. 5 depicts a variation of an embodiment of a method for remotelymonitoring intoxication;

FIGS. 6A and 6B depict examples of a portion of an embodiment a methodfor remotely monitoring intoxication;

FIG. 7 depicts a schematic of an embodiment of a system for remotelymonitoring intoxication;

FIGS. 8A and 8B depict views of portions of an example of a system forremotely monitoring intoxication; and

FIG. 9 depicts an example of a portion of a system for remotelymonitoring intoxication.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following description of the preferred embodiments of the inventionis not intended to limit the invention to these preferred embodiments,but rather to enable any person skilled in the art to make and use thisinvention.

1. Method

As shown in FIGS. 1 and 2, an embodiment of a method 100 for remotelymonitoring intoxication of a user includes: prompting the user toprovide a breath sample at a time point by way of an applicationexecuting at a mobile computing device S110; at a breath sampleacquisition device, generating a breath sample signal upon reception ofthe breath sample from the user S120, and broadcasting a uniquesignature proximal in time to the time point of breath sample provisionfrom the user S130; using a sensor of the mobile computing device,generating an authentication signal derived from detection of the uniquesignature in association with the breath sample from the user S140; at aprocessing system in communication with the mobile computing device andthe sample acquisition device, receiving the breath sample signal andthe authentication signal S150; generating a verification assessmentthat validates provision of the breath sample by the user, based uponthe breath sample signal and the authentication signal S160; determininga value of an intoxication metric for the user based upon the breathsample signal S170; and transforming the verification assessment and thevalue of the intoxication metric into an analysis of intoxication of theuser S180. In some embodiments, the method 100 can include any one ormore of generating a second authentication signal that enablesverification of the user providing the breath sample based uponanalyzing an action performed by the user S145; and transmitting theanalysis to an entity associated with the user for remote monitoring ofthe user's intoxication S190.

The method 100 functions to provide a tool that allows an entity toremotely monitor a user's alcohol consumption/intoxication. As such, themethod 100 includes blocks that cooperate to enable verification of theidentity of a user providing breath samples indicative of anintoxication state, and to prevent fraudulent sample submission by usersattempting to avoid consequences of an intoxication level above acertain limit (e.g., a legal limit). The method 100 preferably enablesan entity who is remote from the user to monitor the user's intoxicationlevels, such that the user does not need to be in the physical presenceof the entity monitoring his/her intoxication. In examples, the entitycan be a supervisor (e.g., work supervisor, probation officer, etc.), acaretaker, a family member, an acquaintance, or any other suitableentity associated with the user who has an interest in monitoring theuser's intoxication. In variations, the method 100 can be implemented byat least a portion of the system 200 described in Section 2 below, butcan additionally or alternatively be implemented using any suitablesystem that facilitates remote monitoring of a user's intoxication.

Block S110 recites: prompting the user to provide a breath sample at atime point by way of an application executing at a mobile computingdevice, which functions to initiate sample reception and/or useridentity verification for remote monitoring of the user's intoxicationstate. Block S110 is preferably implemented using the mobile computingdevice associated with the user and the native application installed onthe mobile computing device, as described in Section 2 below; however,Block S110 can additionally or alternatively be implemented using anyother suitable computing device that can be used to prompt the user toprovide a breath sample. In Block S110, prompting is preferablyperformed using one or more of: display functions of a display of themobile computing device, speaker functions of an audio-output element ofthe mobile computing device, haptic functions of an actuation element(e.g., vibration motor) of the mobile computing device, visual signalfunctions of a light emitting element (e.g., LED) of the mobilecomputing device and/or the sample acquisition device, and/or any othersuitable function of the mobile computing device. In one example, anative application executing at the mobile computing device can providea graphic and/or textual message, using the display of the mobilecomputing device, to cue the user to provide a breath sample uponpairing of the mobile computing device with an associated breath sampleacquisition device. In a specific example, the native application canimplement the display of the mobile computing device to display thebreath sample acquisition device that has been paired with the mobilecomputing device, along with textual messages that indicate aninitiation time point of breath sample provision and/or an appropriateduration of breath sample provision, in order to achieve a suitablebreath sample. Additionally or alternatively, prompting in Block S110can be performed using the breath sample acquisition device described inBlock S120 and Section 2 below, for instance, using LED signals toprompt sample provision. Additionally or alternatively, prompting inBlock S110 can be performed in a non-electronic format, for instance, byway of an interaction (e.g., a verbal interaction, an interaction inwriting, etc.) between the user and another human entity associated withthe user.

In Block S110, prompting can be triggered by an entity associated withthe user, wherein the entity is remotely monitoring the user'sintoxication. In one such variation, the entity can provide an input ata control module (e.g., server-coupled control module in communicationwith the mobile computing device, by way of the native application),wherein the input initiates prompting of the user to provide a breathsample (e.g., immediately, in near real time). In Block S110, promptingcan additionally or alternatively be triggered by the user providing thebreath sample. In one such variation, the user can provide an input atthe mobile computing device (e.g., through the application) and/or thebreath sample acquisition device described in further detail below,which indicates that the user desires to provide a sample and initiatesprompting of the user to provide the breath sample. Additionally oralternatively, in Block S120 prompting can occur at regular time points(e.g., every morning, every afternoon, every evening, etc.), irregulartime points (e.g., preset time points, randomly selected time points),or with any suitable frequency. In a specific example, Block S110 canallow an entity (e.g., a probation officer) supervising the user tosubmit a request (e.g., to a server facilitating implementation of themethod 100) with a schedule for the user to provide breath samples atdesired time points. The specific example of Block S110 can then enableautomatic prompting of the user to provide breath samples according tothe schedule provided by the entity supervising the user. In variationsof the specific example, the user can be made aware of the entireschedule created by the supervising entity, or the user canalternatively be unaware of the schedule created by the supervisingentity, such that the user cannot anticipate when he/she will beprompted to provide a breath sample.

Additionally or alternatively, in Block S110, prompting can be triggeredin association with reception of contextual data derived from one ormore sensors of, or other native applications running on the mobilecomputing device and/or the breath sample acquisition device. In oneexample, prompting can be triggered upon detection that the user hasentered and/or left a location associated with alcohol consumption(e.g., a bar, a lounge, a club, etc.), by using a location identifyingelement (e.g., GPS module, cell-phone tower triangulation, WiFitriangulation, iBeacon, analysis of a video or image feed, etc.) of themobile computing device running the native application. In anotherexample, prompting can be triggered upon detection that the user isexperienced or has experienced a social event where alcohol (or anotherimpairing substance) could be consumed, by accessing a calendarapplication of the mobile computing device running the nativeapplication. In another example, prompting can be triggered by accessinga log of communication interactions (e.g., text messages, emailmessages, online social network posts, social check-ins, etc.)facilitated using the mobile computing device. Additionally oralternatively, prompting can be triggered based upon processing signalsderived from a wearable biometric sensing device associated with theuser and/or the mobile computing device, wherein the signals indicatephysiological states of the user associated with impairment. Promptingin Block S110 can, however, be triggered in any other suitable manner.

Block S120 recites: at a breath sample acquisition device incommunication with the mobile computing device, generating a breathsample signal upon reception of the breath sample from the user. BlockS120 can additionally or alternatively include transmitting a breathsample signal, derived from reception of the breath sample from theuser, to the mobile computing device implemented in embodiments of themethod 100. Block S120 functions to receive a sample from the user fromwhich a signal can be generated and a value of an intoxication metriccan be determined, as in Block S170. Block S120 is preferablyimplemented using the breath sample acquisition device described inSection 2 below, wherein the breath sample acquisition device isconfigured to collect breath samples from the user. Preferably, thebreath sample acquisition device and the mobile computing device areuniquely associated with each other and with the user, in order toenable verification of the source of breath samples provided by theuser. In Block S120, the breath sample signal is preferably generated ata fuel cell sensor that enables measurement of a user's blood alcoholcontent (BAC), and/or other intoxication metric indicative of sobriety,by an electrochemical process. In relation to the fuel cell sensor,generating the breath sample signal can include producing an electricalcurrent in response to oxidation of alcohol carried in the breath sampleprovided by the user, wherein the magnitude of the produced electricalcurrent varies in a predictable manner according to the amount (e.g.,relative volume) of alcohol carried in the breath sample. In analternative variation, generating the breath sample signal can beimplemented at a semiconductor sensor that produces a change inelectrical resistance in response to an alcohol-dioxide reaction,wherein the magnitude of the change in resistance varies in apredictable manner according to the amount (e.g., relative volume) ofalcohol carried in the breath sample. In other variations however, BlockS120 can additionally or alternatively include generating a breathsample signal at a spectrophotometer configured to produce a signal inresponse to absorbed or emitted light from alcohol molecules carried inthe breath sample from the user. Generating the breath sample signal inBlock S120 can, however, include generating a signal at any suitableelement configured to respond to alcohol in a sample from the user.

In a specific example, receiving the breath sample can include receivingthe breath sample at a cavity of a breathalyzer, wherein the cavityincludes a first aperture and a second aperture configured to facilitatebreath intake and outflow, respectively. In the specific example, thecavity is in communication with a fuel cell sensor that receives ametered volume of the breath sample, wherein the fuel cell sensorfacilitates generation of a breath sample signal by an electrochemicalprocess. Specifically, the fuel cell sensor produces an electricalcurrent in response to oxidation of alcohol carried in the breath sampleprovided by the user, wherein the magnitude of the produced electricalcurrent varies in a predictable manner according to the amount (e.g.,relative volume) of alcohol carried in the breath sample. As such, inthe specific example, the breath sample signal comprises an electricalcurrent magnitude that can be detected and processed to determine avalue of an intoxication metric indicative of the sobriety of the user.Variations of the specific example can, however, include generation ofany other suitable type of electrical signal in response to a receivedbreath sample from the user.

In variations of Blocks S110 and S120 of the method 100, receiving abreath sample from the user can be substituted with or supplemented withreceiving any one or more of: urine samples, blood samples, interstitialfluid samples, and any other suitable sample that can be used to assessthe user's substance use. Furthermore, in relation to any of the abovetypes of samples, samples used to determine sobriety and substance usageby the user are preferably received from the user in a non-invasivemanner; however, samples can additionally or alternatively be receivedin a minimally invasive or invasive manner. Furthermore, in somevariations, a signal generated in response to a received sample can begenerated without directly collecting a sample from the user. Forexample, a signal can be generated in an indirect manner, as derivedfrom an interaction between a stimulus and the user's body (e.g.,spectrometer-based analysis of light transmitted from a user's bloodvessels).

Block S130 recites: at the breath sample acquisition device incommunication with the mobile computing device, broadcasting a uniquesignature proximal in time to the time point of breath sample provisionfrom the user. Block S130 functions to provide a detectable signature,in association with breath sample provision by the user, that can beused to validate the breath sample acquisition device as the source ofthe breath sample signal generated in Block S120 and for reception atthe processing system in Block S150. In combination with a secondauthentication signal generated in Block S145, an authentication signalderived from the unique signature of Block S130 can be used to validatethe breath sample acquisition device as the source of the breath sampleprovided by the user, as well as the identity of the user providing thebreath sample. As such, fraudulent activity involving another entity(e.g., an entity who is not the user) and/or another breath sampleacquisition device is prevented. In Block S130, the mobile computingdevice and the sample acquisition device are preferably physicallyuncoupled (e.g., in wireless communication) during broadcasting of theunique signature, such that Block S130 does not require physicalcoupling between the mobile computing device and the sample acquisitiondevice. However, the mobile computing device and the sample acquisitiondevice can alternatively be in any other suitable configuration.

In Block S130, characteristics of the unique signature are preferablylogged in anticipation of reception of the associated breath samplesignal, such that validation of the unique signature in association withthe breath sample and the user, during post-processing of data derivedfrom detection of the unique signature and received signals, can beperformed. As such, in one such variation, as shown in FIG. 3A, thenative application executing at the mobile computing device canautomatically generate and log the characteristics of the uniquesignature, transmit commands to the sample acquisition device tobroadcast the unique signature (e.g., by Bluetooth coupling), anddetect/verify the unique signature broadcasted by the sample acquisitiondevice. In another variation, also shown in FIG. 3A, a control moduleseparate from the mobile computing device can generate and log thecharacteristics of the unique signature, transmit commands to the sampleacquisition device to broadcast the unique signature, and facilitatedetection of the unique signature broadcasted by the sample acquisitiondevice. Alternatively, the user or another entity can controlcharacteristics of the unique signature. In one such variation, as shownin FIG. 3B, the user can provide inputs using the native applicationexecuting at the mobile computing device, wherein the characteristics ofthe unique signature are logged. The characteristics can then betranslated into commands for the sample acquisition device to broadcastthe unique signature, and detection of the unique signature broadcastedby the sample acquisition device can be implemented using the mobilecomputing device. In a specific example, the user can tap and/or dragacross a touch interface of the mobile computing device to definecharacteristics of a unique signature of light emission, and thecharacteristics can then be transmitted as commands to the sampleacquisition device for later verification of a match between theanticipated unique signature and the detected unique signature. However,determination of a match between the anticipated unique signature anddata derived from the detected unique signature can alternatively beperformed in any other suitable manner. For instance, in still anothervariation, the sample acquisition device can generate the uniquesignature, broadcast parameters of the unique signature (e.g., byBluetooth coupling), and also broadcast the unique signature (e.g.,using light emission as described below) for reception at the mobilecomputing device, thereby enabling verification of the breath samplefrom the user.

The unique signature provided in Block S130 is preferably detectableusing sensors of the mobile computing device associated with the userand the breath sample acquisition device used during provision of thebreath sample. Furthermore, detection of the unique signature using themobile computing device preferably does not require physical couplingbetween the mobile computing device and the sample acquisition device.Even further, the unique signature provided in Block S130 is preferablydetectable using the same sensors of the mobile computing device used togenerate the second authentication signals that enable verification ofthe identity of the user providing the breath sample (e.g., a camerathat enables visual identification of the user), such that simultaneousverification of the breath sample source and the identity of the userproviding the breath sample can be performed; however, the uniquesignature can alternatively be detectable in any other suitable manner.

In one variation, the unique signature can comprise a unique signatureof light emission using one or more light emitting elements of thesample acquisition device, wherein the unique signature of lightemission is detectable using optical sensors (e.g., of a camera module,of a video camera module, of a stereo camera module) of the mobilecomputing device in communication with the sample acquisition device. Inthis variation, the characteristics of the unique signature can beautomatically generated by a control module (e.g., a control moduleassociated with a native application of the mobile computing device, acontrol module separate from the mobile computing device), or canalternatively be generated by the user or another entity, as describedabove. Characteristics can be associated with operational modes ofoutput (e.g., on-off states), and/or associated with modulation ofparameters of light emission. In this variation, as shown in FIGS. 4Aand 4B, the characteristics of the unique signature can comprise any oneor more of: a wavelength of light emission (e.g., using infrared light,using light having wavelengths in the visible light spectrum, using anysuitable wavelength(s) of electromagnetic emission), an intensity oflight emission, a frequency of light flashes, a pulse width of lightflashes in a sequence of light flashes, variations in pulse width oflight flashes in the sequence of light flashes, intensity of lightflashes in the sequence of light flashes, variations in intensity oflight flashes in the sequence of light flashes, number of light flashesin the sequence of light flashes, durations of rest between flashes inthe sequence of light flashes, a pattern of light emission usingmultiple light emitting elements of the sample acquisition device,modulation of any light emission parameter (e.g., intensity, wavelength,etc.) of the unique signature, and any other suitable characteristic.

In another variation, the unique signature can comprise a uniquesignature of audio signals using one or more audio output elements(e.g., speakers) of the sample acquisition device, wherein the uniquesequence of audio signals is detectable using an audio signal sensingelement (e.g., microphone, stereo microphone) of the mobile computingdevice in communication with the sample acquisition device. In thisvariation, the characteristics of the unique signature can beautomatically generated by a control module (e.g., a control moduleassociated with a native application of the mobile computing device, acontrol module separate from the mobile computing device), or canalternatively be generated by the user or another entity, as describedabove. Characteristics can be associated with operational modes ofoutput (e.g., on-off states), and/or associated with modulation ofparameters of audio signal emission. In this variation, thecharacteristics of the unique signature can comprise any one or more of:a frequency of audio signals, variations in frequency of the audiosignals, a melody of the signature of audio signals, a pulse width ofpulsed audio signal outputs in the signature of audio signals,variations in pulse width of pulsed audio signal outputs in thesignature of audio signals, volume of audio signals in the signature ofaudio signals, variations in volume of audio signals in the sequence ofaudio signals, number of pulses in a sequence of pulsed audio signals,durations of rest between pulses in a sequence of pulsed audio signals,a pattern of audio signals broadcasted by multiple audio signal emittingelements of the sample acquisition device, and any other suitablecharacteristic.

In another variation, the unique signature can comprise a uniquesignature of haptically detected signals using one or more actuatorelements (e.g., vibration motors) of the sample acquisition device,wherein the unique sequence of haptically detected signals is detectableusing an haptic signal sensing element (e.g., accelerometer, microphone)of the mobile computing device in communication with the sampleacquisition device. In this variation, the characteristics of the uniquesignature can be automatically generated by a control module (e.g., acontrol module associated with a native application of the mobilecomputing device, a control module separate from the mobile computingdevice), or can alternatively be generated by the user or anotherentity, as described above. Characteristics can be associated withoperational modes of output (e.g., on-off states), and/or associatedwith modulation of parameters of haptic signal emission. In thisvariation, the characteristics of the unique signature can comprise anyone or more of: a frequency of vibration pulses, variations in frequencyof the vibration pulses, a pulse width of vibration pulses in thesignature of haptically detected signals, variations in pulse width ofvibration pulses in the signature of haptically detected signals,amplitude of pulses in the signature of haptically detected signals,variations in amplitude of pulses in the signature of hapticallydetected signals, number of pulses in a signature of haptically detectedsignals, durations of rest between pulses in a signature of hapticallydetected signals, a pattern of pulses broadcasted by multiple vibrationproducing elements of the sample acquisition device, and any othersuitable characteristic.

In still other variations, the unique signature can comprise anysuitable combination of the above types of signatures (e.g., lightemission signatures, audio signal signatures, haptic signal signatures,etc.) and/or any other suitable type of signature. Furthermore, inrepeat instances of breath sample provision by the user or a populationof users, the type of unique signature can be selected (e.g., randomlyselected, deliberately selected) from one of a set of unique signaturetypes (e.g., light emission signatures, audio signal signatures, hapticsignal signatures, etc.) for each repeat instance of breath sampleprovision.

Block S140 recites: using a sensor of the mobile computing device,generating an authentication signal derived from detection of the uniquesignature in association with the breath sample from the user. BlockS140 functions to translate a detected unique signature, broadcastedfrom the sample acquisition device proximal in time to a time point ofbreath sample provision, into an authentication signal that can be usedto validate the sample acquisition device as the source of the breathsample signal generated from the user. As noted above, in generating theauthentication signal in Block S140, the mobile computing device ispreferably physically uncoupled from the sample acquisition device, butin communication (e.g., wireless communication) with the sampleacquisition device, such that Block S140 does not require physicalcoupling between the mobile computing device and the sample acquisitiondevice. In one such variation, the mobile computing device and thesample acquisition device are wirelessly coupled (e.g., Bluetoothpaired) and in proximity of each other, such that the mobile computingdevice can appropriately detect the broadcasted unique signature.However, in alternative variations, the mobile computing device and thesample acquisition device can be physically coupled in association withBlock S140 and/or other blocks of the method 100.

In Block S140, detection of the unique signature can include any one ormore of: optical detection of a broadcasted electromagnetic signature(e.g., emitted light signature) using a camera module of the mobilecomputing device, detection of a broadcasted audio signal signatureusing a microphone module of the mobile computing device, detection of abroadcasted vibration signature using a vibration detection module(e.g., microphone module, accelerometer, etc.) of the mobile computingdevice, and detection of any other broadcasted signature using any othersuitable module of the mobile computing device or other device.Additionally, in Block S140, generation of the authentication signal caninclude transformation of one or more of detected electromagneticsignals, audio signals, vibrations signals, and other signals into adataset that describes one or more of: amplitudes, frequencies,intensities, wavelengths, durations, patterns, pulse widths, restperiods, and any other suitable parameter of the unique signaturedetected by the mobile computing device.

As shown in FIGS. 1 and 2, the method 100 can include Block S145, whichrecites: generating a second authentication signal that enablesverification of the identity of the user providing the breath sample,based upon analyzing an action performed by the user. Block S145functions to enable validation of the identity of the user providing thebreath sample, in association with the breath sample received at thesample acquisition device. As such, Block S145, in combination with theauthentication signal generated in Block S130, enables validation of theidentity of the user providing the breath sample and validation of thebreath sample acquisition device as the source of the breath sampleprovided by the user. Thus, fraudulent activity involving another entity(e.g., an entity who is not the user) and/or another breath sampleacquisition device is prevented.

In some variations, Block S145 can include prompting the user to performan action S146, and generating the second authentication signal inresponse to the user's performance of the action. In some variations,Block S145 is implemented at a user verification module coupled to atleast one of a sample receiving module and a sample processing module;however, Block S145 can additionally or alternatively be implemented atsensors of an electronic device (e.g., mobile computing device)configured to pair with at least one of the sample acquisition deviceand a processing system, as described in Section 2 below.

In some variations, Block S145 can include generating the secondauthentication signal at an optical sensor (e.g., of a camera module ofthe mobile computing device) configured to capture a feature of the user(e.g., a feature that enables facial recognition, recognition of theuser's eye, recognition of the user's ear, recognition of the user'sblood vessel network, and/or recognition of the user's dermatologicalfeatures) in image data and/or video data as the user provides thebreath sample. Additionally or alternatively, Block S145 can includegenerating the second authentication signal at a reader (e.g., RFIDreader, NFC reader, etc.) configured to read an identification chipcoupled to (e.g., embedded subcutaneously in) the user. Additionally oralternatively, Block S145 can include generating the secondauthentication signal at a module configured to accept a biologicalsample (e.g., a saliva sample) from the user as the user provides thebreath sample, which can be used to authenticate the user (e.g., byanalyzing the user's DNA or other biological signature). In yet anotherexample, Block S145 can include prompting the user to ingest a substancethat can be detected within the breath of the user, and generating thesecond authentication signal at a sensor configured to verify thepresence of the substance within the user's breath as the user providesthe breath sample. Furthermore, additional variations can includecombinations of the above variations, and/or combinations of the abovevariations with any other suitable module configured to uniquelyidentify the user based upon any other suitable user signature.

In some additional examples that include prompting the user to performan action, Blocks S145 and S146 can include prompting the user to makean audible noise (i.e., the action) as the user provides the breathsample, and can include generating the second authentication signal atan audio sensor configured to detect the user's voice, as a signature,as the user provides the breath sample. In another variation, Block S146can include prompting the user to hum (i.e., the action) as the userprovides the breath sample, and can include generating the secondauthentication signal at a vibration sensor (e.g., piezoelectricaccelerometer) configured to detect the user's hum vibrations, as asignature, as the user provides the breath sample. In another variation,Block S146 can include prompting the user to touch a fingerprint scanner(i.e., the action) in an orientation that would be difficult toduplicate by another entity as the user provides the breath sample, andgenerating the second authentication signal in association with afingerprint pattern signature unique to the user.

Block S150 recites: at a processing system in communication with themobile computing device and the sample acquisition device, receiving thebreath sample signal and the authentication signals. Block S150functions to enable generation of data that can be used to verify theuser's identity, and which can be used to determine a value of anintoxication metric for the user, in order to facilitate remotemonitoring of the user's intoxication. In Block S150, the processingsystem can be directly in communication with both the mobile computingdevice and the sample acquisition device, or can alternatively be indirect communication one device, and indirectly in communication withthe other device based upon communication between the devices. Thebreath sample signal and the authentication signals (i.e., theauthentication signal and the second authentication signal) arepreferably received at a processing system, such as the processingsystem described in Section 2 below; however, the breath sample signaland the authentication signals can alternatively be received at anyother suitable processing element configured to transform the breathsample signal into a value of an intoxication metric, and to use theauthentication signals to validate the breath sample from the user.

In Block S150, the breath sample signal and the authentication signalsare preferably received in real-time; however, the breath sample signaland the authentication signals can alternatively be received innon-real-time. Preferably, the breath sample signal and theauthentication signals are received simultaneously and matched to eachother (e.g., based upon time stamps, based upon association between ananticipated unique signature and a detected unique signature); however,the breath sample signal and the authentication signals canalternatively be tagged with user specific identifiers (e.g., a user idnumber, a tag associated with the mobile computing device, a tagassociated with the sample acquisition device, a tag associated withunique pairing between the mobile computing device and the sampleacquisition device, etc.), received non simultaneously, and/or matchedto each other after reception of the breath sample signal and theauthentication signals. In a specific example of Block S150, the breathsample signal and the authentication signals can be received wirelesslyusing one or more Bluetooth transmission modules incorporated into thesample acquisition device (e.g., a breathalyzer) configured to collect abreath sample from a user, and a user verification module configured togenerate the authentication signals. However, in variations of thespecific example, the breath sample signal and/or the authenticationsignals can be received at the processing system using any othersuitable wireless data link (e.g., 3G connection, 4G connection, WiFiconnection, NFC connection, etc.) or wired data link (e.g., audio jackconnection, USB connection, lightning cable connection, etc.).

Block S160 recites: generating a verification assessment that validatesprovision of the breath sample by the user, based upon the breath samplesignal and the authentication signal. Block S160 functions to provide aqualitative and/or a quantitative assessment of a match between theauthentication signals (i.e., the authentication signal that enablesvalidation of the breath sample source and the second authenticationsignal that enables validation of the identity of the user providing thebreath sample) and a known identifying signature of the user. Theverification assessment also preferably accounts for a time elapsedbetween provision of the breath sample, as determined from the breathsample signal, and generation of the authentication signals, in order tosupport a determination that the user actually provided the breathsample. In relation to the authentication signal that enables validationof the source (i.e., the sample acquisition device as the source) of thebreath sample, the verification assessment can include one or more of:comparing a signature of detected emitted light broadcasted by thesample acquisition device to the anticipated unique signature of lightemission, comparing a signature of detected audio signals broadcasted bythe sample acquisition device to the anticipated unique signature ofaudio signals, comparing a signature of detected vibration signalsbroadcasted by the sample acquisition device to the anticipated uniquesignature of vibration signals, and comparing any other suitabledetected authentication signal to an anticipated signature to validatethe source of the provided breath sample.

In relation to the second authentication signal that enables validationof the identity of the user providing the breath sample, theverification assessment can include one or more of: comparing at leastone of a facial feature signature, an eye signature, and an earmorphology signature to the authentication signals; comparing an audiosignature of the user to the authentication signals; comparing avibration signature of the user to the authentication signals; comparinga fingerprint signature of the user to the authentication signals;comparing an identification chip signature of the user to theauthentication signals; comparing a biological signature of the user tothe authentication signals; and comparing a signature of the user froman ingested substance to the authentication signatures.

As such, Block S160 can include performing a template matching algorithmand/or any other suitable matching algorithm, along with statisticalmethods to assess closeness of matching, in order to verify a matchbetween the anticipated and detected authentication signal, as well as amatch between the identity of the user in relation to the secondauthentication signal. The template matching algorithm(s) can be used toexamine similarities and/or differences between the authenticationsignals and the identifying signature of the user. A matching threshold(e.g., based upon a percent match, etc.) can then be used to generate anassessment of similarity between the authentication signals and asuitable identifying signature (e.g., anticipated unique signature,identity-related signature of the user, etc.). In variations wherein theverification assessment is qualitative, the verification assessment canprovide a binary indication of authentication (e.g., the verificationassessment indicates that the user's identity was verified from theauthentication signals, or the verification assessment indicates thatthe user's identity was not verified from the authentication signals).In variations wherein the verification assessment is quantitative, theverification assessment can provide a metric that indicates closeness ofmatching, wherein the metric can be compared to a threshold condition toassess a false identity or a positive identity of the user. As such, ina specific example, the metric can provide a percent of matching betweenthe authentication signals and the identifying signature of the user(e.g., there is a 79% match between the user's identifying signature andthe authentication signals), with a percent of matching above 75% takenas a positive identification of the user.

Also noted above and as shown in FIG. 5, Block S160 can be supplementedby Block S165, which recites: verifying unique pairing between thesample acquisition device and the mobile computing device, whichfunctions to provide additional support that validates the source of thebreath sample in the verification assessment. In Block S165, a uniquemobile computing device identifier (e.g., a device serial number, amobile equipment identifier, an international mobile station equipmentidentity) or other identifier (e.g., Wi-Fi address, Bluetooth address,IP address, etc.) can be logged and a unique sample acquisition deviceidentifier (e.g., a device serial number) or other identifier (e.g.,Wi-Fi address, Bluetooth address, IP address, etc.) can also be loggedfor subsequent verification of pairing between approved devices (e.g., amobile computing device and a sample acquisition device documented to beassociated with the user). In variations of Block S165, any breathsample signal and/or authentication signals received at the processingsystem can be tagged with the sample acquisition device identifier andthe mobile computing device identifier and analyzed to verify that theunique sample acquisition device/mobile computing device pair was usedto generate and provide the signal(s) to the processing system. In BlockS165, verification of unique pairing between the sample acquisitiondevice and the mobile computing device can, however, be performed in anyother suitable manner.

Additionally or alternatively, Block S160 can be supplemented by BlockS166, which recites: preventing pairing of a second sample acquisitiondevice with the mobile computing device. Block S166 functions to onlypermit a single unique pairing between the mobile computing device andthe sample acquisition device, and to block pairing between multiplesample acquisition devices with the mobile computing device. As such,Block S166 can provide a feature that allows only a single sampleacquisition device to be used within proximity of the mobile computingdevice, in support of prevention of fraudulent sample provision. In onevariation, Block S166 can include passing any pairing attempts betweensample acquisition devices and the mobile computing device through anapproval module (e.g., a software module provided through the nativeapplication executing on the mobile computing device). In thisvariation, the approval module compares an identifier of a deviceattempting to pair with the mobile computing device to an approvedsample acquisition device identifier (e.g., a device serial number,Wi-Fi address, Bluetooth address, etc.) of the sample acquisition deviceknown to be associated with the user. Additionally or alternatively,Block S166 can include preventing pairing between another sampleacquisition device and the mobile computing device, once the approvedsample acquisition device associated with the user has been paired withthe mobile computing device.

In support of the verification assessment, Block S160 can additionallyor alternatively include one or more of: verification of a time stamp ofsample provision, verification of a time stamp of pairing between themobile computing device and the sample acquisition device associatedwith the user, verification of a time stamp of broadcast of the uniquesignature in relation to a time stamp of detection of the uniquesignature, and any other suitable verification step that supportsvalidation of the source of the breath sample and validation of theidentity of the user providing the breath sample.

Block S170 recites: determining a value of an intoxication metric forthe user based upon the breath sample signal, which functions to enablea quantitative analysis of the user's intoxication to be performed. Theintoxication metric is preferably a blood alcohol concentration (BAC),which can be determined from the breath sample signal generated asdescribed in relation to Block S120 above; however, the intoxicationmetric can alternatively be any other suitable metric characterizingintoxication of the user. In variations, a BAC value corresponding tothe breath sample can be determined based upon the magnitude of anelectrical signal produced when alcohol in the user's breath reacts witha sensing element of the sensor (e.g., a current magnitude produced by aplatinum-alcohol oxidation reaction for a fuel cell sensor, a change inelectrical resistance produced by an alcohol-dioxide reaction for asemiconductor sensor, etc.). In other variations, a BAC valuecorresponding to any other suitable type of sample from the user can bedetermined based upon an electrical signal produced in response toirradiation of the sample (e.g., by way of an electrical pulse generatedin response to absorption of infrared light by the sample, using aspectrophotometer), by way of a detected chemical change (e.g., asexhibited by a color change) in response to a chemical reaction betweenthe sample and a chemical additive, or in any other suitable manner.

Block S180 recites: transforming the verification assessment and thevalue of the intoxication metric into an analysis of intoxication of theuser, which functions to analyze the user's state of intoxication at thetime at which the user provided the breath sample, and additionally togenerate an alert if the user's breath sample has been falsified byfraudulent activity. The analysis preferably includes the value of theintoxication metric (e.g., a BAC value for the breath sample), and atleast one of the qualitative indication of the user's identity and thequantitative metric characterizing the matching closeness between theuser's identifying signature and the authentication signals. In somevariations, generating the analysis can include generating anotification that informs the entity of the user's current intoxicationstate, which in examples informs the entity that the user is: above alegal limit of intoxication, below a legal limit of intoxication, or atan unknown intoxication state relative to a legal limit of intoxication.In Block S180, generating the analysis can include generating arendering of the analysis, including one or more of: a graphicalrepresentation of the user's value of the intoxication metric relativeto a legal limit, a trend in the value of the user's intoxication metricover time, and a graphical representation of assurance that the breathsample provided was not a fraudulent sample, examples of which are shownin FIGS. 6A and 6B.

Also shown in FIGS. 1 and 2, the method 100 can include Block S190,which recites: transmitting the analysis to an entity associated withthe user for remote monitoring of the user's intoxication. Block S190functions to provide the analysis to an entity (e.g., a supervisingentity) who is at a location remote from the user, in order tofacilitate remote monitoring of the user's intoxication. In Block S190,the analysis can be transmitted along with any suitable notification(e.g., visual notification, haptic notification, audio notification,etc.), and can be provided to the entity in any suitable manner (e.g.,using a messaging client accessible by the entity, at a mobile device ofthe entity, etc.). The analysis can be transmitted automatically basedupon a given alert state (e.g., an automated notification upon detectionthat the user is entering a dangerous intoxication state), and/or can beprovided when prompted by the user or other entity. In some variations,transmitting the analysis can further enable the entity to assist theuser in a given intoxication state, especially when the user is unableto or unwilling to communicate with the entity. In examples,transmitting the analysis can thus allow the entity to locate the user(e.g., based upon GPS data provided along with the transmittedanalysis), and can prepare the entity to accommodate the intoxicationstate of the user (e.g., by sending a taxicab to pick the user up).Additionally or alternatively, transmitting the analysis can furtherenable the entity to perform a disciplinary action intended to correctbehavior of the user and/or prevent future states of impairment orintoxication. The disciplinary action can comprise a form of reprimand,a punishment (e.g., negative report, penalty), or any other suitabledisciplinary action. In these examples and variations, the analysis canbe transmitted in any suitable manner (e.g., messaging client, by anonline social network, in person, etc.), and can be made accessible tothe user.

In relation to a supervising entity remotely monitoring the user'sintoxication state, as discussed in relation to Block S110 above,variations of Blocks S180 and S190 can include any one or more of:notifying the supervising entity of results of any analysischaracterizing impairment of the user (e.g., via a messaging client,upon logging into a secure account intended for access by thesupervising entity only); providing time information (e.g., a date,time) pertaining to the breath sample provided by the user, to thesupervising entity; rendering content (e.g., image content, audiocontent, video content, fingerprint scan content, etc.) pertaining tothe second authentication signal configured to enable validation of theidentity of the user providing the breath sample; and performing anyother suitable action that enables the supervising entity to effectivelymonitor the user's intoxication. In a specific example, the entity canbe provided with video content showing the light emission signature andthe user, as the user provides the breath sample, which enablesvalidation of the source of the breath sample signal and the identity ofthe user. Additionally or alternatively, variations of Block S180 andS190 can allow the user to see and/or share (e.g., via a messagingclient, via an online social network) content provided to thesupervising entity.

The method 100 can, however, include any other suitable blocks or stepsconfigured to facilitate remote monitoring of a user, in relation tostates of impairment or intoxication. For instance, the method 100 caninclude blocks configured to facilitate transmission of incentives(e.g., monetary incentives, motivational incentives, etc.) toindividuals, based upon at least one of the verification assessment andthe value of the intoxication metric. In one such application, incentiveprovision can be used to streamline research performed onincentive-based behavior modification for addicts, which can reducecosts and increase efficiencies (e.g., as opposed to having subjectscome in for testing and compensation). Additionally or alternatively,applications of the method 100 can be expanded to facilitate remotemonitoring of any other suitable type of impairment (e.g.,marijuana-induced impairment, other substance-induced impairment, etc.),for instance, in implementing a device configured to analyze samplesindicative of substance abuse, as the sample acquisition device.Furthermore, as a person skilled in the art will recognize from theprevious detailed description and from the figures and claims,modifications and changes can be made to the method 100 withoutdeparting from the scope of the method 100.

2. System

As shown in FIG. 7, an embodiment of a system 200 for remotelymonitoring intoxication of a user includes: a breath sample acquisitiondevice 210 including: a body 212 defining a cavity 215 configured toaccept a breath sample from the user, a sample processing module 230 incommunication with the cavity 215 and configured to generate a breathsample signal upon reception of the breath sample at a time point, and auser identification module 240 configured to broadcast a uniquesignature proximal in time to the time point; a data link 248 configuredto communicate the breath sample signal; and a processing system 250 incommunication with the breath sample acquisition device 210 andincluding: a first module 252 configured to promote provision of thebreath sample by the user at the time point by way of an applicationexecuting at a mobile computing device 300, a second module 254configured to receive the breath sample signal from the breath sampleacquisition device 210 by way of the data link 248, and to receive anauthentication signal derived from detection of the unique signaturewith a sensor 305 of the mobile computing device 300, a third module 256configured to generate a verification assessment that validatesprovision of the breath sample by the user, based upon the breath samplesignal and the authentication signal; a fourth module 258 configured togenerate a value of an intoxication metric for the user based upon thebreath sample signal; and a fifth module 260 configured to transform theverification assessment and the value of the intoxication metric into ananalysis of intoxication of the user. The system 200 can further includeany other suitable element that facilitates monitoring of the user'sintoxication, such as a storage module 270 configured to store at leastone of the verification assessment, the value of the intoxicationmetric, and the analysis, and a transmission module 280 coupled to atleast one of the processing system 250 and the storage module 270 andconfigured to transmit the analysis to an entity (e.g., a supervisingentity).

The system 200 functions to provide a tool that allows an entity tomonitor a user's alcohol consumption/intoxication. As such, the system200 includes elements that cooperate to prevent fraudulent samplesubmission by users attempting to avoid consequences of an intoxicationlevel above a certain limit (e.g., a legal limit). The system 200preferably enables an entity who is remote from the user to monitor theuser's intoxication levels, such that the user does not need to be inthe physical presence of the entity monitoring his/her intoxication. Inexamples, the entity can be a supervisor (e.g., work supervisor,probation officer, etc.), a caretaker, a family member, an acquaintance,or any other suitable entity associated with the user who has aninterest in monitoring the user's intoxication. The system 200 can alsoincorporate a social component, wherein information related to a user'sintoxication can be communicated to another entity using digital and/ornon-digital social networks of the user. In variations, the system 200can be configured to perform at least a portion of the method 100described in Section 1 above, and can additionally or alternatively beconfigured to perform any suitable method that facilitates remotemonitoring of a user's intoxication.

2.1 System—Sample Acquisition Device

The breath sample acquisition device 210 includes a body 212 defining acavity 215 configured to accept a breath sample from the user, andfunctions to provide a module that facilitates reception and processingof the set of breath samples. The body 212 is configured to enclose atleast a portion of the system 200, and functions to protect elements ofthe system 200 over the lifetime usage of the system 200. In someembodiments, the body 212 can further function to enhance portability ofthe system 200, such that the user can conveniently bring the breathsample acquisition device 210 wherever he/she goes. As shown in FIGS. 8Aand 8B, the body 212 can include a first body portion 213 and a secondbody portion 214 coupled together (e.g., by snap fit, by press fit, bycouplers, by screws, etc.) to form an interior chamber. In somevariations, at least one of the first body portion 213 and the secondbody portion 214 can include a transparent or translucent portion 299that allows elements within the body 212 to be visible or identifiable.However, in other variations, the first body portion 213 and the secondbody portion 214 can be substantially opaque to hide elements within thebody 212. The body 212 is preferably composed of a polymer (e.g.,polystyrene) that is processed to define features of the body (e.g., bymachining, by injection molding, by casting, by printing, etc.);however, the body can alternatively be composed of any other suitablematerial and processed by any other suitable process. In a specificexample, as shown in FIG. 8A, the first body portion 213 and the secondbody portion 214 couple together by a snap fit to form an approximatelyrectangular prism with rounded corners, wherein the first body portion213 includes a transparent portion 299 located at the periphery of thefirst body portion 213 that allows visualization of elements internal tothe body 212.

The cavity 215 is preferably included within a portion of the interiorchamber of the body 112, is coupled to the sample processing module 130,and comprises a first aperture 216 and a second aperture 217, incommunication with the first aperture 216, configured to facilitatesample inflow and outflow. The cavity 215 thus functions to facilitatetransmission of a sample from the user to be analyzed by the sampleprocessing module 230. The first aperture 216 and the second aperture217 can be substantially identical in geometry, such that the cavity hasan axis of symmetry (e.g., longitudinal axis of symmetry, transverseaxis of symmetry), and such that each of the first aperture 216 and thesecond aperture 217 can function as both a sample inlet and a sampleoutlet; however, the first aperture 216 and the second aperture 217 canalternatively be non-identical in geometry or in any other suitablefeature, as shown in FIGS. 8A, 8B, and 9, such that the cavity 215 hasan orientation that is identifiable by the user and is configured toonly receive a sample from one of the first aperture 216 and the secondaperture 217.

In one variation, the cavity 215 can be defined by a tube form factor,as shown in FIG. 8A, wherein the cavity 215 defines a substantiallylinear pathway from the first aperture 216 to the second aperture 217,and wherein the cavity 215 defines a sample intake coupled to the sampleprocessing module 230 at a location between the first aperture 216 andthe second aperture 217; however, in other variations, the cavity 215can alternatively define a non-linear (e.g., curved, boustrophedonic,serpentine, s-shaped, etc.) pathway from the first aperture 216 to thesecond aperture 217. In still other variations, the cavity 215 canalternatively be defined by any other suitable form factor thatfacilitates transmission of the sample from the user. The cavity 215 canbe of unitary construction with the body 212, can be physicallycoextensive with the body 212, or can be coupled to the body 212 (e.g.,to an interior portion of the body 212, to an exterior portion of thebody 212) in any other suitable manner. Furthermore, the cavity 215 ispreferably composed of a polymer (e.g., polystyrene) that is processedto define features of the cavity (e.g., by machining, by injectionmolding, by casting, by printing, etc.); however, the cavity 215 canalternatively be composed of any other suitable material and processedby any other suitable process. Similar to the body 212, the cavity 215can also include a transparent or translucent portion that can beilluminated (e.g., by a lighting module) to provide an indicatorfunction for the user. In a specific example, as shown in FIGS. 8A and8B, the cavity 215 is partially coupled to the body 212 by a housing 218that couples the cavity 212 to a peripheral portion of the body 212,wherein the housing 118 includes apertures that align with and provideaccess to the first aperture 216 and the second aperture 217.

In some variations, the breath sample acquisition device 210 can furtherinclude a mouthpiece 219 configured to mechanically couple (e.g., withprotrusions/depressions, with slots, with keys, with tabs, with threads,by press fit, etc.) to at least one of the first aperture 216 and thesecond aperture 217, in order to facilitate sample reception from theuser. The mouthpiece 219 can be configured to permanently couple to atleast one of the first aperture 216 and the second aperture 217,semi-permanently couple to at least one of the apertures 216, 217, orreversibly couple to at least one of the apertures 216, 217.Furthermore, the mouthpiece 219 can be processed to define uniqueidentifiers (e.g., colors, textures, geometric features, etc.) thatfacilitate usage of the system 200 by multiple users. In one specificexample, the mouthpiece 219 is configured to be reversibly coupled tothe first aperture 216, such that the mouthpiece 219 is a disposable andreplaceable element of the breath sample acquisition device 210. Inalternative variations of the breath sample acquisition device 210,however, the mouthpiece 219 can be of unitary construction with one ofthe first aperture 216 and the second aperture 217.

2.2 System—Sample Processing Module

The sample processing module 230 is configured to couple to the cavity215 of the breath sample acquisition device 210, and functions tofacilitate generation of signals from the breath sample that can betransmitted for further analysis. Preferably, the sample processingmodule 230 receives a metered volume of the breath sample from the user,in order to enable normalization of generated signals indicative of astate of intoxication of the user. In providing a metered volume of thebreath sample to the sample processing module 230, the breath sampleacquisition device 210 preferably includes a valve that allows a desiredvolume of the breath sample to pass into the sample processing module230, in a repeatable and accurate manner. Variations of the sampleprocessing module 230 can, however, operate with or without a meteredvolume of the breath sample in any other suitable manner.

The sample processing module 230 preferably includes a sensor 232coupled to an electronics subsystem 235, wherein the sensor 232interacts with the breath sample and an electronics subsystem 235 incommunication with the sample processing module 230 conditions signalsproduced based upon the sensor-sample interaction for transmission to aprocessing system 250 for further analysis. The sample processing module230 is preferably housed within the body 212 of the breath sampleacquisition device 210, but can alternatively be configured relative tobreath sample acquisition device 210 in any other suitable manner. Thesample processing module 230 can, alternatively, include any othersuitable elements that facilitate sample processing and transmission.

The sensor 232 is preferably a fuel cell sensor that enables measurementof a user's BAC by an electrochemical process. In particular, the fuelcell sensor is configured to produce an electrical current in responseto oxidation of alcohol carried in a breath sample, wherein themagnitude of the produced electrical current varies in a predictablemanner according to the amount (e.g., relative volume) of alcoholcarried in the breath sample. As such, in some variations, the sensor232 can be incorporated into a fuel cell subsystem including a pump 233configured to drive a breath sample received from at least one of thefirst aperture 216 and the second aperture 217, through a sample intake239 toward the sensor 232, as shown in FIGS. 8A and 8B.

In other variations, the sensor 232 can alternatively be a semiconductorsensor that produces a change in electrical resistance in response to analcohol-dioxide reaction, wherein the magnitude of the change inresistance varies in a predictable manner according to the amount (e.g.,relative volume) of alcohol carried in the breath sample. In a specificexample, the semiconductor sensor can incorporate tin-oxide as a sensingelement; however, variations of the semiconductor sensor canalternatively use any other suitable sensing element. In othervariations of the sensor 232, the sensor can include a spectrophotometerconfigured to produce a signal in response to absorbed or emitted lightfrom alcohol molecules carried in the breath sample, or any othersuitable type of sensor.

The electronics subsystem 235 comprises a power module 236 configured topower the sample processing module 230 and a conditioning module 238configured to process signals generated by the sensor 232 fortransmission and further analysis. As such, the electronics subsystem235 functions to provide power to elements of the system 200, conditionand/or preprocess signals generated from received breath samples, andfacilitate transmission of signals to a processor for further analysis.The electronics system 235 preferably incorporates or is configured tocouple to a data link 248 for transmission of signals (e.g., the breathsample signal) from the sample processing module 230 to the processingsystem 250 for further processing and analysis. Preferably, theelectronics subsystem 235 complies with relevant technical and safetystandards, such that the system 200 is configured for “home-use”;however, the electronics subsystem can be configured in any suitablemanner.

The power module 236 of the electronics subsystem 235 functions toprovide regulated and unregulated electrical power to the sampleprocessing module 230 and to allow power storage for the sampleprocessing module 230. The power module 236 preferably comprises abattery 237, such as a lithium-ion battery that is configured to berechargeable, but can alternatively comprise any other suitablerechargeable battery (e.g., nickel-cadmium, metal halide, nickel metalhydride, or lithium-ion polymer). Alternatively, the power module 236can comprise a non-rechargeable battery (e.g., alkaline battery) thatcan be replaced to further enhance modularity in the system 200. Thepower module 236 can be configured to have any appropriate profile suchthat the power module 236 provides adequate power characteristics (e.g.,cycle life, charging time, discharge time, etc.) for the sampleprocessing module 130 within physical constraints provided by the body212 of the breath sample acquisition device 210.

In variations where the battery 237 of the power module 236 isrechargeable, the electronics subsystem 235 can also comprise a coil ofwire and associated electronics that function to allow inductivecharging of the battery by an external power source and the power module236. Inductive charging provided by the charging coil thus alsofacilitates patient mobility while interacting with the system 200, suchthat the patient can be extremely mobile while monitoring his/herintoxication. In alternative variations, however, the charging coil canbe altogether omitted (e.g., in variations without a rechargeablebattery), or replaced or supplemented by a connection 234 (e.g., USBconnection) configured to provide wired charging of a rechargeablebattery.

The conditioning module 238 functions to preprocess signals generated bythe sensor 232 prior to transmission from the sample processing module230, and can additionally function to regulate elements of theelectronics subsystem 235. The conditioning module 238 preferablycomprises signal conditioning elements, including one or more of: ananalog-to-digital converter (e.g., to convert analog signals from thesensor 232), an amplifier, and a filter for processing signals prior totransmission. In some variations, the conditioning module 238 caninclude a microprocessor configured to direct signal conditioningfunctionalities of the conditioning module 238 and a voltage regulatorconfigured to protect elements of the electronics subsystem 235 fromovervoltage and/or under-voltage states.

The electronics subsystem 235 can additionally or alternatively compriseany other suitable element that facilitates intoxication monitoring.Furthermore the electronics subsystem 235 can be coupled to a usercontrol module that interfaces with the electronics subsystem 235, suchthat manual control of any aspect of the breath sample acquisitiondevice 210 and/or the sample processing module 230 can be performed bythe user or any other suitable entity. The user control module cancomprise a power toggle (e.g., on/off button) for activating and/ordeactivating the breath sample acquisition device 210. The user controlmodule can further include input devices that allow the user to indicateinitiation of sample provision. Preferably, the user control moduleprovides a minimal number of controls (e.g., an on/off button, a sampleprovision initiation button), but can provide any suitable number ofmanual controls. The user control module can be touch-activated (e.g.,with a touch screen, buttons, dials, knobs, sliders), or can beactivated using any other suitable manner (e.g., sound activation).Preferably, the user control module is integrated with the electronicssubsystem 235, but in other alternative variations, the user controlmodule can be implemented remotely from the system sample processingmodule 230, for example, using an application executing on a mobiledevice of the patient.

The data link 248 functions to transmit an output of at least oneelement of the electronics subsystem 235 to one or more of: a mobilecomputing device 300, the processing system 250, and any other suitablecomputing device (e.g., desktop computer, laptop computer, tablet,smartphone, health tracking device, server, cloud). In variations, themobile computing device 300 can comprise one or more of: a mobilecommunication device, a head-mounted mobile computing device, awrist-mounted mobile computing device, and any other suitable computingdevice associated with the user. Preferably, the data link 248 is awireless interface; however, the data link 248 can alternatively be awired connection. In a first variation, the data link 248 can include aBluetooth module that interfaces with a second Bluetooth module includedin the mobile computing device or pair-able element, wherein data orsignals are transmitted by the data link 248 to/from the mobilecomputing device 300 or external element over Bluetooth communications.The data link 248 of the first variation can alternatively implementother types of wireless communications, such as 3G, 4G, radio, or Wi-Ficommunication. In the first variation, data and/or signals arepreferably encrypted before being transmitted by the data link 248. Forexample, cryptographic protocols such as Diffie-Hellman key exchange,Wireless Transport Layer Security (WTLS), or any other suitable type ofprotocol may be used. The data encryption may also comply with standardssuch as the Data Encryption Standard (DES), Triple Data EncryptionStandard (3-DES), or Advanced Encryption Standard (AES).

In a second variation, the data link 248 is a wired connection such thatthe electronics subsystem 235 can communicate with the mobile computingdevice and/or any external computing element through a jack of themobile computing device and/or external computing element. In onespecific example of the data link 248 that includes a wired jack, thedata link 248 is configured only to transmit output signals from theelectronics subsystem 235. In another specific example, the data link248 is configured to transmit data to and from at least one element ofthe electronics subsystem 235 and a mobile computing device (e.g., forpairing of the mobile computing device and the electronics subsystem,for synchronization between the mobile computing device and theelectronics subsystem). In this example, the data link 248 can transmitoutput signals into the mobile computing device through the microphoneinput of the audio jack of the mobile computing device and can retrievedata from the audio output of the audio jack of the mobile computingdevice. In variations of this example, the data link 248 canadditionally or alternatively communicate with the mobile computingdevice via inter-integrated circuit communication (I2C), one-wire,master-slave, or any other suitable communication protocol. However, thedata link 248 can transmit data in any other way and can include anyother type of wired connection (such as a USB wired connection) thatsupports data transfer between the electronics subsystem 235, the mobilecomputing device, the processing system 250, and/or any other suitablecomputing element.

2.3 System—User Identification Module

The user identification module 240 is configured to broadcast a uniquesignature proximal in time to the time point of breath sample provisionat the breath sample acquisition device 210. The user identificationmodule 240 preferably implements at least a portion of Blocks S130,S140, and S145 described in Section 1 above; however, the useridentification module 240 can additionally or alternatively beconfigured to implement any other suitable steps. As such, the useridentification module 240 functions to facilitate validation of thesource (i.e., the sample acquisition device as the source) of the breathsample signal received at the processing system 250. The useridentification module 240 preferably includes output elements of thebreath sample acquisition device 210, and in examples, can include oneor more: light emitting elements (e.g., LEDs) of the sample acquisitiondevice 210, one or more audio signal output elements (e.g., speakers) ofthe sample acquisition device 210, one or more actuator elements (e.g.,vibration motors) of the sample acquisition device 210, and any othersuitable output element of the sample acquisition device 210. As notedabove, the output elements used to facilitate validation of the sourceof the breath sample provided by the user are preferably controlled by acontrol module (e.g., a software module of the mobile computing devicepaired with the sample acquisition device, a software module of theprocessing system, etc.), in order to generate the unique signatureoutput by the sample acquisition device 210. Also noted above,characteristics of the unique signature are preferably logged (e.g., atthe processing system), in order to enable verification of a matchbetween the anticipated authentication signal logged for futurereference, and the actual authentication signal derived from detectionof the unique signature.

Also noted above in relation to Block S150 described in Section 1 above,and in relation to the second module 254 of the processing system 250described below, detection of the unique signature and generation of anauthentication signal derived from detection of the unique signature arepreferably implemented using a sensor 305 of the mobile computing device300 in communication with the breath sample acquisition device 210 andthe processing system 250; however, detection of the unique signatureand generation of the authentication signal can be implemented using anyother suitable element.

In relation to validating the identity of the user providing the breathsample, the user identification module 240 is preferably also configuredto prompt an action by the user and generate a second authenticationsignal that enables verification of the identity of the user providingthe breath sample, based upon analysis of the action. As such, the useridentification module 240 can also function to enable identification ofan action performed by the user, as a signature unique to the user,while the user is providing the breath sample, such that signalsassociated with the action can be used to authenticate the user andprevent fraudulent activity. The action detected by the useridentification module 240 is thus preferably performed simultaneouslywith breath sample provision; however the action detected by the useridentification module 240 can be additionally or alternatively beperformed prior to (e.g., immediately prior to) and/or after (e.g.,immediately after) provision of the breath sample. The user is alsopreferably able to perform the action with a specific, repeatable, andidentifiable configuration/orientation relative to the breath sampleacquisition device 210, in order to prevent another entity fromproviding the breath sample (i.e., a fraudulent breath sample) while theuser performs the action. However, in some variations, the useridentification module 240 can be configured to adapt to a degree ofvariation in the user's performance of the action.

In one variation, wherein the user identification module 240 is incommunication with the mobile computing device 300, the useridentification module 240 can implement an optical sensor (e.g., cameramodule) configured to capture a feature of the user (e.g., a featurethat enables facial recognition, recognition of the user's eye,recognition of the user's ear, recognition of the user's blood vesselnetwork, and/or recognition of the user's dermatological features) asthe user provides the breath sample. In this variation, theauthentication signals generated can include a signature unique to theuser (e.g., the user's facial configuration, the user's eye, the user'sear, the user's blood vessel network, the user's freckles, etc.). In yetanother variation, the user identification module 240 can include areader (e.g., RFID reader, NFC reader, etc.) configured to read anidentification chip coupled (e.g., embedded subcutaneously) to the user,wherein the reader is located proximal to the cavity 215 in anorientation that is configured to enable reading of only theidentification chip of the user providing the breath sample. In thisvariation, the authentication signals generated can include a signatureunique to the user based upon the information captured in theidentification chip (e.g., name, identification number, photograph,fingerprint, parent names and identification numbers, date of birth,gender, address, etc.). In yet another variation, the useridentification module 240 can include a module configured to accept abiological sample (e.g., a saliva sample) from the user as the userprovides the breath sample, which can be used to authenticate the user(e.g., by analyzing the user's DNA or other biological signature). Inyet another example, the user identification module 240 can beconfigured to prompt the user to ingest a substance that can be detectedwithin the breath of the user, and can include a sensor configured toverify the presence of the substance within the user's breath as theuser provides the breath sample. In any of the above variations, thesensor(s) of the user identification module 240 can be fixed relative tothe sample-receiving module in a manner that prevents another entityfrom providing a fraudulent breath sample while the user performs theaction.

Additionally or alternatively, in some variations, the useridentification module 240 can be coupled to at least one of the breathsample acquisition device 210 and the sample processing module 230, inorder to facilitate simultaneous generation of signals from the breathsample and authentication signals resulting from the user's performanceof the action. In one variation, the user identification module 240 canprompt the user to make an audible noise (i.e., the action) as the userprovides the breath sample, and can include an audio sensor proximal tothe cavity 215 of the sample receiving module 230 configured to detectthe user's voice, as a unique signature, as the user provides the breathsample. In this variation, the authentication signals generated caninclude an audio signature unique to the user's voice. In anothervariation, the user identification module 240 can prompt the user to hum(i.e., the action) as the user provides the breath sample, and caninclude a vibration sensor (e.g., piezoelectric accelerometer) proximalto the sample receiving module 230 configured to detect the user's humvibrations, as a unique signature, as the user provides the breathsample. In this variation, the authentication signals generated caninclude a vibration signature unique to the user's voice. In anothervariation, the user identification module 240 can prompt the user totouch a fingerprint scanner (i.e., the action) located proximal to thecavity 215 in an orientation that would be difficult to duplicate byanother entity as the user provides the breath sample. In thisvariation, the authentication signals generated can include afingerprint pattern signature unique to the user.

As such, the user identification module 240 can be implemented usingsensors of an electronic device (e.g., mobile computing device, breathsample acquisition device) that can be paired (e.g., wirelessly, in awired manner) with at least one of the breath sample acquisition device210 and the sample processing module 230 in order to facilitatesimultaneous sample reception and user authentication. In somevariations, the electronic device can be further configured to couple(e.g., electromechanically couple, mechanically couple) to at least oneof the breath sample acquisition device 210 and the sample preparationmodule 230, such that the electronic device is fixed relative to one ofthe breath sample acquisition device 210 and the sample preparationmodule 230 in a manner that prevents another entity from providing afraudulent breath sample while the user performs the action. Additionalvariations can include combinations of the above variations, and/orcombinations of the above variations with any other suitable moduleconfigured to uniquely identify the user based upon any other suitableuser signature.

2.4 System—Processing System

The processing system 250 is in communication with the breath sampleacquisition device 210 and includes: a first module 252 configured topromote provision of the breath sample by the user at the time point byway of an application executing at a mobile computing device 300, asecond module 254 configured to receive the breath sample signal fromthe breath sample acquisition device 210 by way of the data link 248,and to receive an authentication signal derived from detection of theunique signature with a sensor 305 of the mobile computing device 300, athird module 256 configured to generate a verification assessment thatvalidates provision of the breath sample by the user, based upon thebreath sample signal and the authentication signal; a fourth module 258configured to generate a value of an intoxication metric for the userbased upon the breath sample signal; and a fifth module 260 configuredto transform the verification assessment and the value of theintoxication metric into an analysis of intoxication of the user. Assuch, the processor 250 preferably functions to implement at least aportion of the method 100 described in Section 1 above, but canalternatively be configured to perform any other suitable method thatfacilitates remote monitoring of the user's intoxication.

The first module 252, the second module 254, the third module 256, thefourth module 258, and the fifth module 260 can be implemented at singleprocessing unit, or can be implemented using multiple processing units.For instance, the modules of the processing system 250 can beimplemented in one or more computing systems, wherein the computingsystem(s) can be implemented at least in part in the cloud and/or as amachine (e.g., computing machine, server, etc.) configured to receive acomputer-readable medium storing computer-readable instructions. In oneapplication, a module of the processing system 250 can be implemented ina machine configured to interface directly with the breath sampleacquisition device 210 (e.g., using a wired or a wireless connection) toreceive the breath sample signal, a module of the processing system 250can be implemented in a machine configured to interface directly withthe mobile computing device 300 (e.g., using a wired or a wirelessconnection) to receive the authentication signals, and a module of theprocessing system 250 can be implemented using a cloud-based computingsystem configured to perform a majority of signal post-processing inrelation to the method 100 described above.

2.4 System—Other Elements

The system 200 can additionally further comprise a storage module 270,which functions to retain data generated during use of the system 200.In particular the storage module 270 can be configured to store at leastone of the verification assessment, the value of the intoxicationmetric, and the analysis for further processing or later retrieval. Thestorage module 270 can be implemented with any one or more of: theelectronics subsystem 235, mobile computing device, personal computer,web browser, external server (e.g., cloud), local server, and anycombination of the above, in a network configured to transmit, store,and receive data. Preferably, data from the storage module 270 isautomatically transmitted to any appropriate external devicecontinuously; however, data from the storage module 270 canalternatively be transmitted intermittently (e.g., every minute, hourly,daily, or weekly). In one example, data generated by any element can bestored on a portion of the storage module 270 when the data link 248 isnot coupled to an element external to the electronics subsystem 235.However, in the example, when a link is established between the datalink 248 and an external element, data may then be automaticallytransmitted from the storage module 270. In other examples, the storagemodule 270 can alternatively be manually prompted to transmit storeddata by a user or other entity.

The system 100 can additionally include a transmission module 280configured to couple to at least one of the processing system 250 andthe storage module 270 and which functions to transmit the analysis toan entity for remote monitoring of the user's intoxication. Thetransmission module 280 can provide the analysis in an electronic formatand/or a non-electronic format (e.g., by mail). In some variations,wherein the analysis is provided in an electronic format, the analysiscan be accessed using an electronic messaging client provided by a webbrowser and/or an application (e.g., an application executing at amobile device of the entity). The transmission module 280 can furtherimplement other functionalities of a mobile device of the entity, suchas video and/or audio communication services (e.g., FaceTime, Skype,etc.). As such, the entity may have the option to directly visualize theuser as the user performs the action and provides the breath sample, inconjunction with receiving the analysis of the user's intoxication.

As shown in FIGS. 7 and 9, the system 200 can additionally include anindicator module 290, which functions to guide the user in properlyproviding a breath sample. The indicator module 290 can be implementedusing an application executing at a mobile device of the user, and invariations, can incorporate functions of one or more of: a display ofthe mobile device, an LED of the mobile device, a speaker of the mobiledevice, a vibration motor of the mobile device, and any other suitableelement of the mobile device. In relation to the user identificationmodule 240 described above, the indicator module 290 can share elementswith the user identification module 240, such that the elements havedual functionality in guiding the user to provide a breath sample andfacilitating authentication of a breath sample received from the user.

In some variations, the indicator module 290 includes a lighting module291 configured to couple to the breath sample acquisition device 210 andthe sample processing module 230. One variation of the lighting module291 includes a set of light emitting diodes (LEDs) configured toindicate that the user should initiate provision of a breath sample,that the sample processing module 230 is processing the breath sample,and/or that the user has improperly provided a breath sample. In aspecific example, as shown in FIG. 9, the lighting module 291 includes afirst LED 292 and a second LED 293 oriented proximal to the cavity 215(e.g., a tube configured to receive the breath sample), such that thefirst LED 292 and the second LED 293 illuminate the cavity to provide anindicator function for the user. In the specific example, the first LED292 functions as a visual cue that guides the user in submitting abreath sample into the cavity 215, and the second LED 293 functions as avisual cue that indicates that the sample processing module 230 iscurrently processing the breath sample provided by the user. As such,the first LED 292 and the second LED 292 in the specific example areboth coupled to the electronics subsystem 240 of the sample processingmodule 230. Other variations of the indicator module 190 can include anyother suitable indication elements in communication with any othersuitable element of the system 200.

The system 200 can further include any other suitable elements thatfacilitate remote monitoring of a user's intoxication. Additionally, asa person skilled in the field of intoxication monitoring devices willrecognize from the previous detailed description and from the figuresand claims, modifications and changes can be made to the embodiments,variations, examples, and specific applications of the system 200described above without departing from the scope of the system 200.

Variations of the method 100 and system 200 include any combination orpermutation of the described components and processes. Furthermore,various processes of the preferred method can be embodied and/orimplemented at least in part as a machine configured to receive acomputer-readable medium storing computer-readable instructions. Theinstructions are preferably executed by computer-executable componentspreferably integrated with a system and one or more portions of thecontrol module 155 and/or a processor. The computer-readable medium canbe implemented in the cloud and/or stored on any suitable computerreadable media such as RAMs, ROMs, flash memory, EEPROMs, opticaldevices (CD or DVD), hard drives, floppy drives, or any suitable device.The computer-executable component is preferably a general or applicationspecific processor, but any suitable dedicated hardware device orhardware/firmware combination device can additionally or alternativelyexecute the instructions.

The FIGURES illustrate the architecture, functionality and operation ofpossible implementations of systems, methods and computer programproducts according to preferred embodiments, example configurations, andvariations thereof. In this regard, each block in the flowchart or blockdiagrams may represent a module, segment, step, or portion of code,which comprises one or more executable instructions for implementing thespecified logical function(s). It should also be noted that, in somealternative implementations, the functions noted in the block can occurout of the order noted in the FIGURES. For example, two blocks shown insuccession may, in fact, be executed substantially concurrently, or theblocks may sometimes be executed in the reverse order, depending uponthe functionality involved. It will also be noted that each block of theblock diagrams and/or flowchart illustration, and combinations of blocksin the block diagrams and/or flowchart illustration, can be implementedby special purpose hardware-based systems that perform the specifiedfunctions or acts, or combinations of special purpose hardware andcomputer instructions.

As a person skilled in the art will recognize from the previous detaileddescription and from the figures and claims, modifications and changescan be made to the preferred embodiments of the invention withoutdeparting from the scope of this invention defined in the followingclaims.

We claim:
 1. A method for remotely monitoring intoxication of a user,comprising: at a breath sample acquisition device in communication witha mobile computing device of the user, transmitting a breath samplesignal, derived from reception of a breath sample from the user, to themobile computing device, and within a time interval, broadcasting aunique signature indicative of the breath sample acquisition device,wherein the time interval is proximal in time to a time point of breathsample provision from the user, wherein the unique signature is at leastone of an audible signature, a visible signature, and a tangiblesignature; using a sensor of the mobile computing device, generating anauthentication signal derived from detection of the unique signature inassociation with the breath sample from the user; at a processing systemin communication with the mobile computing device, receiving the breathsample signal and the authentication signal; generating a verificationassessment that validates provision of the breath sample by the user,based upon the breath sample signal and the authentication signal; andgenerating an intoxication assessment of the user based upon the breathsample signal.
 2. The method of claim 1, further comprising collecting alocation dataset at the mobile device, and prompting the user, at themobile device, to provide the breath sample based on the locationdataset.
 3. The method of claim 2, wherein prompting the user to providethe breath sample comprises emitting light with a light emitting moduleof the breath sample acquisition device at a first time point, andwherein broadcasting the unique signature comprises emitting a lightsignature with the light emitting module of the breath sampleacquisition device.
 4. The method of claim 1, wherein broadcasting theunique signature comprises emitting a light signature with a lightemitting module of the breath sample acquisition device.
 5. The methodof claim 4, wherein the light emitting module operates between an onstate and an off state, and emitting the light signature comprisesoperating the light emitting in a specific pattern of on states and offstates of the light emitting module.
 6. A method for remotely monitoringintoxication of a user, comprising: at a breath sample acquisitiondevice in communication with a mobile computing device of the user,transmitting a breath sample signal, derived from reception of a breathsample from the user, to the mobile computing device, and broadcasting aunique signature indicative of the breath sample acquisition device,wherein the unique signature is at least one of an audio signature, avisual signature, and a tactile signature; using a sensor of the mobilecomputing device, generating an authentication signal derived fromdetection of the unique signature in association with the breath samplefrom the user; at a processing system in communication with the mobilecomputing device, receiving the breath sample signal and theauthentication signal; generating a verification assessment thatvalidates provision of the breath sample by the user, based upon thebreath sample signal and the authentication signal; and generating anintoxication assessment of the user based upon the breath sample signal.7. The method of claim 6, further comprising collecting a communicationdataset at the mobile device, and prompting the user, at the mobiledevice, to provide the breath sample based on the communication dataset.8. The method of claim 6, further comprising generating a secondauthentication signal that validates the identity of the user, basedupon analyzing an action performed by the user.
 9. The method of claim8, further comprising generating the second authentication signal inassociation with a fingerprint pattern signature collected from the userat the mobile device, and generating the verification assessment thatvalidates provision of the breath sample by the user, based upon thebreath sample signal, the authentication signal, and the secondauthentication signal.
 10. The method of claim 6, wherein generating theauthentication signal comprises detecting the unique signature in aconfiguration wherein the breath sample acquisition device is physicallyuncoupled from the mobile computing device.
 11. The method of claim 6,further comprising determining a value of an intoxication metric for theuser based upon the breath sample signal, and transforming theverification assessment and the value of the intoxication metric intothe intoxication assessment of the user.
 12. The method of claim 6,wherein prompting the user to provide the breath sample comprisesemitting light with a light emitting module of the breath sampleacquisition device at a first time point, and wherein broadcasting theunique signature comprises emitting a light signature with the lightemitting module of the breath sample acquisition device.
 13. The methodof claim 6, wherein broadcasting the unique signature comprisesbroadcasting at least one of: a light emission signature at the breathsample acquisition device, an audio signal signature at the breathsample acquisition device, and a vibration signal signature at thebreath sample acquisition device, proximal in time to the time point ofbreath sample provision from the user.
 14. The method of claim 6,wherein generating the authentication signal comprises detecting theunique signature in a configuration wherein the breath sampleacquisition device is physically uncoupled from the mobile computingdevice.
 15. The method of claim 6, further comprising blocking pairingof a second breath sample acquisition device with the mobile computingdevice, in enabling validation of a source of the breath sample providedby the user.
 16. The method of claim 6, further comprising transmittingthe intoxication assessment to an entity supervising the user, by way ofa secure account accessible to the entity, thereby enabling remotemonitoring of intoxication of the user.
 17. A method for remotelymonitoring intoxication of a user, comprising: at a sample acquisitiondevice in communication with a mobile computing device, transmitting asample signal, derived from reception of a sample from the user, to themobile computing device, and broadcasting a unique signature, comprisinga pattern of visible light emission emitted from light emitters of thesample acquisition device; using an optical sensor of the mobilecomputing device, generating an authentication signal derived fromdetection of the pattern of light emission in association with thesample from the user; at a processing system in communication with themobile computing device, generating a verification assessment thatvalidates provision of the sample by the user, based upon the samplesignal and the authentication signal; and generating an intoxicationassessment of the user based upon the sample signal.
 18. The method ofclaim 17, wherein broadcasting a unique signature occurs within a timeinterval, and wherein the time interval is proximal in time to a timepoint of sample provision from the user.
 19. The method of claim 17,wherein the sample is a breath sample, and wherein the method furthercomprises prompting the user to provide the breath sample, and whereinprompting the user to provide the breath sample comprises emitting lightwith a light emitting module of the breath sample acquisition device ata first time point outside the time interval, and wherein broadcastingthe unique signature comprises emitting a light signature with the lightemitting module of the breath sample acquisition device at a second timepoint within the time interval.
 20. The method of claim 17, furthercomprising collecting location data at the mobile device, triggering themobile device of the user to prompt the user to provide the sample basedon the location data, and prompting the user to provide the sample.